Warp beam



w H. R. WING Dec. 31, 1935.

WARP BEAM 2 Sheets-Sheet l Qnuentor Hamom R. wing 5 (lttornegs Filed Aug. 28, 1933 Dec. 31, 1935. .2, lNG 2,025,923

WARP BEAM Filed Aug. 28, 1933 2 Sheets-Sheet 2 $nuentor' Harokl R. Minn Patented Dec. 31, 1935 I UNITED STATE WARP BEAM Application August 28, 1933, Serial No. 687,092

4 Claims.

This invention relates to warp beams, and it is the general object of the invention to provide an improved beam having a smooth surface on which delicate warp threads can be wound.

Warp beams for silk or similar fine yarns customarily have friction heads and also false heads adjustable to vary the width of the warp space. At the beginning of the winding operation the ends ofthe warp threads are laid over a groove extending longitudinally of the barrel of the beam and a rod or anchor is driven into the slot to hold the warp ends frictionally.

It is an object of my invention to apply metallic sleeves or collars to the ends oi the beam barrel and form the collars with yarn receiving channel sections which enter and are aligned by the yarn slot in the barrel.

It is desirable to have the false heads adjustable along metallic sleeves. The collar has a main body with a slot therein to the edges of which is secured the channel section, the latter effectively binding the two edges of the collar together to form in effect an integral collar with a rod slot therein. The adjustment may be accomplished by screw threads on the sleeves and false heads, but this is not an essential feature of my invention.

It is a further object of my present invention to provide a warp beam with a perfectly smooth surface on which the warp can be wound directly, thus rendering unnecessary the usual paper on which the warp is wound. In the usual form of wooden beam barrel there are longitudinal exterior grooves which hold the tie rods that bind the friction heads to the beam. These slotsmake marks in the warp, and to avoid this I form the wooden barrel with a pair of substantially similar pieces of wood in each of which are cut grooves so that when the parts are assembled the grooves will define holes to receive the tie rods. These holes are internal with respect to the beam so that the rods do not touch the yarn.

With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims. In the accompanying drawings, wherein a convenient embodiment of my invention is set forth, I Fig. l is anelevation of a warp beam made according to my invention, the intermediate portions being removed, I

Fig. 2 is a longitudinal section on line 2-2 on a reduced scale,

Fig. 3 is a detail transverse section showing the relation of the channel and its wings to the collar and notches therein,

Fig. 4 is a perspective view of one end of the beam showing the manner of applying the collar before the threads have been out therein, this figure showing the final form of the collar when threads are not to be used for adjusting purposes.

Fig. 5 isa transverse section on line 55 of Fig. l,

Figs. 6 to 9, inclusive, indicate diagrammatically successive steps in the formation of the collar.

Fig. 10 is a view similar to Fig. 3 but with the channel omitted and indicating the opposed edges of the collar after the cutting operation has beencompleted, and

Figs. 11 and 12 are similar to Fig. 3 but showing modified forms of collar and channel construction.

Referring particularly to Figs. 1 to 5, I have shown a beam barrel 2!) made preferably of two sections of wood 2| and 22 which may be glued together throughout their length and have embedded in them a shaft or gudgeon 23. Each half has two semi-circular grooves 24 which are so related that when the parts are assembled as shown in Fig. 5 the grooves will align in pairs to define slots for tie rods 25. The latter project through friction heads 26 and have nuts 21 which bind the heads to the ends of the barrel.

A longitudinal slot 39 in the wooden barrel receives a three-sided channel section 3| which is adapted to receive a warp thread clamping rod 32.

Each end of the barrel is reduced as at 33 to define a shoulder 34. A sleeve or collar 35 has an internal diameter substantially the same as or smaller than the external diameter of the reduced end 33 and is forced over the latter. The height of the shoulder 34 may be substantially the same as the thickness of the sleeve so that the wooden periphery of the barrel is a continuation of the cylindrical surface of the collar.

Both of the sleeves are substantially alike, the preferred form of the sleeve being made substantially as indicated in Figs. 1 to 10.

As shown in Fig. 6 I provide a straight piece of sheet metal 40 and bend the same into the substantially U-shaped form indicated in dotted lines in said figure by means of a presser 4| cooperating with a die 42. The U-shaped work may then be placed in another die 43 having a cavity to receive it and a press 4:1 forced down to bend the parallel ends of the work around a tion shown in Fig. '7.

former F from the dotted to the full line posi- This operation purposely leaves the adjacent edges 45 and 46 nearer together than is desired in the finished product.

The work is then held between two jaws 41 and 48 around a brace F with the opposed edges located in the path of a cutter 49. The latter has a central cylindrical barrel 50 from which extend side cutters 5i and 52 respectively, which are so formed as to cut a convex surface. The cutter is shown in raised position in Fig. 8 to illustrate more clearly the proportions of the same with respect to the slot 53 which lies between the opposed edges 45 and 46, but in actual practice the cutter will assume the position shown in Fig. 9. The cutter will move the length of the collar by an ordinary milling operation and will remove all of the original edges 45 and 46 and in addition will define notches 54, the bottom surfaces of which 55 are convex and concentric with the outer surface of the sleeve;

A channel section 68 as shown in Fig. 3 has wings 6| extending laterally therefrom to fit into the notches 54. These wings are preferably pressed or stamped to be concentric with the surfaces 54 so as to lie tightly against them. The outer sides of the vertical walls 62 are such as to fit snugly between the opposed edges 63" which are left by the cutter. By means of welding indicated at 65 the wings are fastened to the reduced edges 56 to effect a tight union between the channel and the collar.

The width of that part of the channel which extends into the collar, as suggested in the lower central part of Fig. 3, is substantially the same as the width of the slot in the wooden barrel, so that when assembling as indicated in Fig. 4 the slot 61 in the channel is accurately aligned with slot 30. After the collar is driven onto the reduced part of the barrel, screw threads 10 may be cut therein if thisform of adjustment is used to receive a threaded hub H on movable or false head 12. The alignment of the slots 61 and 3D permits the rod 32 to extend the full disstance between the false heads 12.

In the first modification shown in Fig. 11 the collar has its opposed edges turned down as at 8| to define surfaces for the reception of a U-shaped channel 82. The channel and collar are secured together at frequent intervals by welding as at 83 and the small longitudinal pockets 84 defined by the rounded part of the collar are closed with a fillet 85 supplied by autogenous welding, after which screw threads may be cut as in the preferred form.

In the second modification illustrated in Fig. 12 the collar may have inturned edges 9| which are located between the upstanding parallel sides 92 of a U-shaped channel 93. Welding as at 94 unites the two parts. As in the other forms the exterior surface of the collar may be supplied with screw threads.

In both modifications the method of forming the collar may be substantially the same as shown in Figs. 6 to 9 with suitable alterations to provide the inturned edges. In all forms of the invention the threads are cut on the collars after the latter are applied to the barrel so that they are concentric with the shafts 23 and also the central wooden part of the barrel.

. The intermediate channel section 3! may be held in place by means of screws 95 and the false heads may be held in position by set screws 96 which preferably pass down into the slot 6'! to engage the sides of the slot without injuring the I good weld can be made.

screw threads. The manner of holding the false heads in position need not necessarily be that set forth herein, and the screw threads at the ends of the beam may be either both of the same hand,

or of opposite hand, as is common in certain 5 types of beams.

From the foregoing it will be seen that I have provided an improved warp beam having a smooth surface and have mounted false heads on collars which assist in holding the wooden sec- 10 tions 2! and 22 of the beam barrel together. Also, the slot 38 which extends lengthwise of the barrel serves to align the collars so that the clamping rod 32 can lie in slots 30 and 61. Furthermore, the collars themselves are made 15 of two parts which are welded together, the principal part being formed from a fiat piece of sheet metal and having its opposed edges held together by a channel section. In the preferred form of the invention the contacting surfaces of 20 the channel section and notch are preferably concentric about the axis of the beam so that a The beam has a smooth uninterrupted winding surface except for the main slot 30 due to embedding the tie rods with- 25 in the beam barrel. In all forms of the invention the opposed edges of the collar are bridged by a channel section which co-acts with the collar section proper to provide a continuous shell around the wooden sections to prevent separation 30 of the latter. The sleeve is shown herein as associated with the wooden barrel, but the entire barrel could be made in a manner similar to the sleeves without departing from the spirit of my invention, and in this connection the metallic 35 tubular structure on which the false head is mounted should be considered as a warp beam forming element which may be either short as shown in Fig. l, or long enough to fill the space between the friction heads. Also, the sleeves 40 need not be threaded necessarily but can be left smooth as shown in Fig. 4 when the false heads are clamped in adjusted position. It will be apparent also that the slotted section which bridges the slot in the main body of the cylin- 45 drical beam forming element is of thinner material than the part 35 as shown in Fig. 3, for instance, thereby making it possible to form relatively sharp corners for the reception of the warp thread clamp. Should the slot be formed of ma- 50 terial of substantially the same thickness as the main body of the cylinder these sharp edges could not be obtained without an expensive machining operation.

Having thus described my invention it will be 55 seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is: 60

1. A warp beam forming element comprising a body of sheet metal of given thickness and of substantially cylindrical form, and having spaced substantially parallel notched edges, and a slot defining section of less thickness than the body 65 entering the notches and secured to the body. I

2. In a warp beam forming element, a collar having a body of relatively thick sheet metal shaped to fit the end of the barrel and being provided with two spaced substantially parallel 70 longitudinally extending edges, the upper edge -of each side of the slot being formed to define a notch, and a slot forming section formed of relatively thin sheet metal having oppositely extending flanges to fit into the notches and be 75 secured thereto, said section uniting the opposite edges of the body to stiffen the latter, and having a recessed central portion to define a slot having relatively sharp corners, the bottom of said notches and the under side of said flanges being concentric with the axis of the barrel.

3. In a warp beam, a pair of separate wooden sections secured together and having a smooth yarn surface interrupted by a single slot for the reception of the ends of the warp to be wound on the beam, friction heads for the barrel, means extending between the heads and securing the same to the barrel, said means located under the uninterrupted surface of the barrel, one of the sections being slotted to receive said means.

4. In a warp beam, a pair of separate wooden sections secured together to form a. barrel having a smooth yarn surface interrupted by a single slot for the reception of the ends of the warp to be wound on the beam, frictional heads for the barrel, means extending between the heads and securing the same to the barrel, said means located under the uninterrupted surface of the barrel, one of the sections being slotted to receive said means, and a substantially continuous collar for each end of the barrel to hold the sections together having a metallic section defining a slot extending into the slot in the barrel.

HAROLD R. WING. 

